Historical opt-in encrypted-record test

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{
  "schemaVersion": 1,
  "publicSummaryVersion": "2026-09-30",
  "classification": "PUBLIC",
  "title": "Historical opt-in encrypted-record test",
  "summary": "On 7 September 2026, an engine test on hosted hardware verified that an opted-in session produced an encrypted transcript readable with the customer’s key, while an opted-out session produced no transcript in the record subsystem. Alteration of a recorded entry was detected. This record explicitly says the feature was not enabled in production. The separate, bounded response-replay cache is outside the transcript subsystem, so the opt-out result is not a claim that no response bytes can exist anywhere. Production enablement requires separately reviewed privacy disclosures and evidence.",
  "date": "7 September 2026",
  "scope": "Historical record; any production observation is limited to the dated test described below.",
  "result": "On 7 September 2026, an engine test on hosted hardware verified that an opted-in session produced an encrypted transcript readable with the customer’s key, while an opted-out session produced no transcript in the record subsystem. Alteration of a recorded entry was detected. This record explicitly says the feature was not enabled in production. The separate, bounded response-replay cache is outside the transcript subsystem, so the opt-out result is not a claim that no response bytes can exist anywhere. Production enablement requires separately reviewed privacy disclosures and evidence.",
  "sections": [],
  "currentDeployment": "Not independently verified by this historical evidence.",
  "canonical": "/evidence/phase-1b-1"
}

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SHA-256 9cd0d2e8854355f5d364e6535d0bd1d9e2b497d74dd171f74114efd43f772452